Functional comparison of the basic domains of the Tat proteins of human immunodeficiency virus types 1 and 2 in trans activation.

abstract：:The spike (S) protein of the severe acute respiratory syndrome coronavirus (SARS-CoV) can be proteolytically activated by cathepsins B and L upon viral uptake into target cell endosomes. In contrast, it is largely unknown whether host cell proteases located in the secretory pathway of infected cells and/or on the surf...

journal_title：Journal of virology

authors： Glowacka I,Bertram S,Müller MA,Allen P,Soilleux E,Pfefferle S,Steffen I,Tsegaye TS,He Y,Gnirss K,Niemeyer D,Schneider H,Drosten C,Pöhlmann S

更新日期：2011-05-01 00:00:00

abstract：:Nucleocapsids were isolated from purified enveloped nucleocapsids of Plodia interpunctella granulosis virus by treatment with Nonidet P-40. When analyzed on sodium dodecyl sulfate-polyacrylamide gels, the nucleocapsids consisted of eight polypeptides. One of these, a major component with a molecular weight of 12,500 (...

journal_title：Journal of virology

authors： Tweeten KA,Bulla LA,Consigli RA

更新日期：1980-02-01 00:00:00

abstract：:The retrovirus SL3 induces T-cell lymphomas in mice. The transcriptional enhancer in the long terminal repeat (LTR) of SL3 contains two 72-bp repeats. Each repeat contains a binding site for the transcription factor CBF (also called AML1). The CBF binding sites are called core elements. SAA is a mutant that is identic...

journal_title：Journal of virology

authors： Martiney MJ,Rulli K,Beaty R,Levy LS,Lenz J

更新日期：1999-09-01 00:00:00

abstract：:Several arenaviruses, chiefly Lassa virus (LASV) and Junin virus in West Africa and Argentina, respectively, cause hemorrhagic fever (HF) disease in humans that is associated with high morbidity and significant mortality. The investigation of antiviral strategies to combat HF arenaviruses is hampered by the requiremen...

journal_title：Journal of virology

authors： Rodrigo WW,de la Torre JC,Martínez-Sobrido L

更新日期：2011-02-01 00:00:00

abstract：:The membrane-proximal external region (MPER) of the human immunodeficiency virus (HIV) envelope glycoprotein (gp41) is critical for viral fusion and infectivity and is the target of three of the five known broadly neutralizing HIV type 1 (HIV-1) antibodies, 2F5, Z13, and 4E10. Here, we report the crystal structure of ...

journal_title：Journal of virology

authors： Pejchal R,Gach JS,Brunel FM,Cardoso RM,Stanfield RL,Dawson PE,Burton DR,Zwick MB,Wilson IA

更新日期：2009-09-01 00:00:00

abstract：:Hepatitis C virus (HCV) is an important human pathogen affecting an estimated 3% of the world's population. Recent advances have enabled in vitro propagation of the virus and allow assembly and egress to be investigated for the first time. As a component of the virion, the HCV core protein likely functions primarily i...

journal_title：Journal of virology

authors： Murray CL,Jones CT,Tassello J,Rice CM

更新日期：2007-10-01 00:00:00

abstract：:Open reading frame 45 (ORF45) of Kaposi's sarcoma-associated herpesvirus 8 (KSHV) is an immediate-early phosphorylated tegument protein and has been shown to play important roles at both early and late stages of viral infection. Homologues of ORF45 exist only in gammaherpesviruses, and their homology is limited. These...

journal_title：Journal of virology

authors： Li X,Zhu F

更新日期：2009-03-01 00:00:00

abstract：:The multifunctional simian and human immunodeficiency virus (SIV and HIV) Nef proteins are important for virulence. We studied the importance of selected Nef functions using an SIV Nef with mutations in two regions that are required for CD4 downregulation. This Nef mutant is defective for downregulating CD4 and, in ad...

journal_title：Journal of virology

authors： Iafrate AJ,Carl S,Bronson S,Stahl-Hennig C,Swigut T,Skowronski J,Kirchhoff F

更新日期：2000-11-01 00:00:00

abstract：:Normal levels of the hypermodified pyrimidine, alpha-putrescinylthymine, which is formed from hydhydroxymethyluracil at the polynucleotide level (Maltman et al., J. Virol. 34:354-359, 1984), are not required in bacteriophage luminal diameterW-14 DNA for the DNA to serve as a replicative template in luminal diameterW-1...

journal_title：Journal of virology

authors： Miller PB,Warren RA

更新日期：1984-12-01 00:00:00

abstract：:The herpes simplex virus type 1 (HSV-1) alpha protein ICP27 regulates the transition between the delayed-early and late phases of the viral infection. Previous genetic analyses have suggested that the important functional domains of ICP27 map to its carboxyl-terminal half. One striking feature of the primary sequence ...

journal_title：Journal of virology

authors： Rice SA,Lam V,Knipe DM

更新日期：1993-04-01 00:00:00

abstract：:The pneumopathogenicity of a trypsin-sensitive revertant of Sendai virus, TSrev-58, which was derived from a trypsin-resistant mutant, TR-5, was examined in mice. In comparison with TR-5, the revertant had a single amino acid substitution at residue 116 (Ile----Arg) on F protein, which was the cleavage site, and had t...

journal_title：Journal of virology

authors： Mochizuki Y,Tashiro M,Homma M

更新日期：1988-08-01 00:00:00

abstract：:It has been proposed recently that the cell surface peptidase CD26 acts in concert with CD4, the human immunodeficiency virus (HIV) primary receptor molecule, to mediate HIV entry into permissive cells. We have failed to detect significant levels of CD26 cell surface expression and enzymatic activity in a number of co...

journal_title：Journal of virology

authors： Lazaro I,Naniche D,Signoret N,Bernard AM,Marguet D,Klatzmann D,Dragic T,Alizon M,Sattentau Q

更新日期：1994-10-01 00:00:00

abstract：:Treatment of cells with lectins specific for N-acetylglucosamine (GlcNAc) blocked infection by mouse cytomegalovirus (MCMV), and GlcNAc pretreatment of the lectin blocked this effect. MCMV failed to infect N-acetylglucosaminidase (GlcNAcase)-treated mouse embryo fibroblasts (MEF). GlcNAc and GlcNAc-containing syntheti...

journal_title：Journal of virology

authors： Ravindranath RM,Graves MC

更新日期：1990-11-01 00:00:00

abstract：:Infection of normal rat fibroblasts (FR 3T3) with the early tsa mutant of polyoma virus may lead to either the A or the N phenotype, tsa-A transformants, originally derived by agar selection, are not temperature dependent for maintenance of the transformed phenotype, whereas tsa-N transormants revert at high temperatu...

journal_title：Journal of virology

authors： Rassoulzadegan M,Seif R,Cuzin F

更新日期：1978-11-01 00:00:00

abstract：:Genetic conflicts between retroviruses and their receptors result in the evolution of novel host entry restrictions and novel virus envelopes, and such variants can influence trans-species transmission. We screened rodents and other mammals for sequence variation in the Xpr1 receptor for the mouse xenotropic or polytr...

journal_title：Journal of virology

authors： Yan Y,Liu Q,Wollenberg K,Martin C,Buckler-White A,Kozak CA

更新日期：2010-11-01 00:00:00

abstract：:The Vpr protein, encoded by the human immunodeficiency virus type 1 (HIV-1) genome, is one of the nonstructural proteins packaged in large amounts into viral particles. We have previously reported that Vpr associates with the DNA repair enzyme uracil DNA glycosylase (UDG). In this study, we extended these observations...

journal_title：Journal of virology

authors： Willetts KE,Rey F,Agostini I,Navarro JM,Baudat Y,Vigne R,Sire J

更新日期：1999-02-01 00:00:00

abstract：:West Nile virus (WNV) replicates in the skin; however, cell targets in the skin have not been identified. In the current studies, WNV infected the epidermis and adnexal glands of mouse skin, and the epidermal cells were identified as keratinocytes by double labeling for WNV antigen and keratin 10. Inoculation of mice ...

journal_title：Journal of virology

authors： Lim PY,Behr MJ,Chadwick CM,Shi PY,Bernard KA

更新日期：2011-05-01 00:00:00

abstract：:Adenovirus infection affects the nuclear distribution of host splicing factors. Late phase-infected cells contain discrete clusters of small nuclear ribonucleoproteins (snRNPs) that are separate from centers containing the viral 72-kilodalton DNA-binding protein (72K protein). In the present study, we demonstrate that...

journal_title：Journal of virology

authors： Bridge E,Xia DX,Carmo-Fonseca M,Cardinali B,Lamond AI,Pettersson U

更新日期：1995-01-01 00:00:00

abstract：:CD4+ T-cell depletion in AIDS patients involves induction of apoptosis in human immunodeficiency virus (HIV)-infected and noninfected T cells. The HIV type 1 (HIV-1)-transactivating protein Tat enhances apoptosis and activation-induced cell death (AICD) of human T cells. This effect is mediated by the CD95 (APO-1/Fas)...

journal_title：Journal of virology

authors： Ehret A,Westendorp MO,Herr I,Debatin KM,Heeney JL,Frank R,Krammer PH

更新日期：1996-09-01 00:00:00

abstract：:The human antibody response to flavivirus infection is dominantly directed against a cross-reactive epitope on the fusion loop of domain II (DII-FL) of the envelope (E) protein. Although antibodies against this epitope fail to recognize fully mature West Nile virus (WNV) virions and accordingly neutralize infection po...

journal_title：Journal of virology

authors： Vogt MR,Dowd KA,Engle M,Tesh RB,Johnson S,Pierson TC,Diamond MS

更新日期：2011-11-01 00:00:00

abstract：:A novel circular DNA virus sequence is reported from grapevine. The corresponding genomic organization, coding potential, and conserved origin of replication are similar to those of members of the family Geminiviridae, but the genome of 3,206 nucleotides is 4% larger than the largest reported geminiviral genome and sh...

journal_title：Journal of virology

authors： Krenz B,Thompson JR,Fuchs M,Perry KL

更新日期：2012-07-01 00:00:00

abstract：:Viral interference studies have demonstrated the existence of four distinct murine leukemia virus (MuLV) receptors on NIH 3T3 mouse cells. The four viral interference groups are ecotropic MuLV; mink cell focus inducing virus (MCF); amphotropic MuLV; and 10A1, a recombinant derivative of amphotropic MuLV that uses a un...

journal_title：Journal of virology

authors： Ott D,Friedrich R,Rein A

更新日期：1990-02-01 00:00:00

abstract：:Alfalfa mosaic virus (AMV) and ilarvirus RNAs are infectious only in the presence of the viral coat protein; therefore, an understanding of coat protein's function is important for defining viral replication mechanisms. Based on in vitro replication experiments, the conformational switch model states that AMV coat pro...

journal_title：Journal of virology

authors： Guogas LM,Laforest SM,Gehrke L

更新日期：2005-05-01 00:00:00

abstract：:The prototypic arenavirus lymphocytic choriomeningitis virus (LCMV) is a formidable battle horse for the study of viral immunology, as well as viral persistence and associated diseases. Investigations with LCMV have uncovered basic mechanisms by which viruses avoid elimination by the host adaptive immune response. In ...

journal_title：Journal of virology

authors： Martínez-Sobrido L,Zúñiga EI,Rosario D,García-Sastre A,de la Torre JC

更新日期：2006-09-01 00:00:00

abstract：:Persistent human immunodeficiency virus (HIV) infection of human monocytes and macrophages increases I kappa B alpha degradation, resulting in the activation of NF-kappa B, a key transcription factor in the regulation of the HIV long terminal repeat. The signal transduction pathways leading to NF-kappa B activation in...

journal_title：Journal of virology

authors： Folgueira L,Algeciras A,MacMorran WS,Bren GD,Paya CV

更新日期：1996-04-01 00:00:00

abstract：:The phenomenon of prion strains with distinct biological characteristics has been hypothesized to be involved in the structural diversity of abnormal prion protein (PrP(Sc)). However, the molecular basis of the transmission of strain properties remains poorly understood. Real-time quaking-induced conversion (RT-QUIC) ...

journal_title：Journal of virology

authors： Sano K,Atarashi R,Ishibashi D,Nakagaki T,Satoh K,Nishida N

更新日期：2014-10-01 00:00:00

abstract：:The complete nucleotide sequences of genomic RNA1 (9,407 nucleotides [nt]) and RNA2 (8,223 nt) of Sweet potato chlorotic stunt virus (SPCSV; genus Crinivirus, family Closteroviridae) were determined, revealing that SPCSV possesses the second largest identified positive-strand single-stranded RNA genome among plant vir...

journal_title：Journal of virology

authors： Kreuze JF,Savenkov EI,Valkonen JP

更新日期：2002-09-01 00:00:00

abstract：:The chimeric murine oncornavirus FrCas(E) causes a rapidly progressive paralytic disease associated with spongiform neurodegeneration throughout the neuroaxis. Neurovirulence is determined by the sequence of the viral envelope gene and by the capacity of the virus to infect microglia. The neurocytopathic effect of thi...

journal_title：Journal of virology

authors： Askovic S,Favara C,McAtee FJ,Portis JL

更新日期：2001-03-01 00:00:00

abstract：:Viruses are considered to use vesicular trafficking in infected cells, but the details of assembly/release pathways of hepatitis B virus (HBV) are still unknown. To identify key regulators of HBV production, we performed short interfering RNA (siRNA) screening for Rab proteins, which are considered to act as molecular...

journal_title：Journal of virology

authors： Inoue J,Ninomiya M,Umetsu T,Nakamura T,Kogure T,Kakazu E,Iwata T,Takai S,Sano A,Fukuda M,Watashi K,Isogawa M,Tanaka Y,Shimosegawa T,McNiven MA,Masamune A

更新日期：2019-07-17 00:00:00

abstract：:Several lines of evidence suggest that various cofactors may be required for prion replication. PrP binds to polyanions, and RNAs were shown to promote the conversion of PrP(C) into PrP(Sc) in vitro. In the present study, we investigated strain-specific differences in RNA requirement during in vitro conversion and the...

journal_title：Journal of virology

authors： Saá P,Sferrazza GF,Ottenberg G,Oelschlegel AM,Dorsey K,Lasmézas CI

更新日期：2012-10-01 00:00:00